DAVID L. DUFF MD
NPI 1588669642
Family Medicine in London, OH
About David L. Duff Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DAVID L. DUFF MD (NPI 1588669642) is an individual family medicine provider in London, Ohio, licensed in Ohio (35078018) and active in the NPI registry since June 2005. He is enrolled in Medicare PECOS, is affiliated with Madison Health, and is a graduate of Ohio State University College Of Medicine (1997).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
David L. Duff Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show David Duff reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Columbus, OH 43215
- Reassigned Medicare billing, Ohio enrollment
- 474 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 3
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Madison Health
Acute Care Hospitals · London, OHPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 43140 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is David Duff's NPI number?
The NPI number for David Duff is 1588669642. It was assigned to this individual provider in the NPPES registry on June 16, 2005.
Where is David Duff located?
David Duff practices at 210 N Main St, London, OH 43140. The listed phone number is (740) 845-7333.
What is David Duff's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is David Duff enrolled in Medicare?
Yes. David Duff is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for David Duff's services?
According to the CMS Revalidation Reassignment List (October 2026 release), David Duff reassigns Medicare benefits to Ohio Emergency Professionals Inc (Columbus, OH). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for David Duff's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is David Duff affiliated with any hospitals?
According to CMS data, David Duff is affiliated with Madison Health.
When was this NPI record last updated?
The NPPES record for David Duff was last updated on June 24, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# David L. Duff, MD · NPI 1588669642
Family Medicine physician in London, Ohio. Individual provider, active in the CMS NPPES registry since June 16, 2005.
## Identity
- **NPI:** 1588669642 (Entity type: Individual)
- **Enumerated:** June 16, 2005
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 35078018 (Ohio)
- **Sole proprietor:** No
## Practice location
- **Address:** 210 N MAIN ST, London, OH 43140-1115
- **Phone:** (740) 845-7333
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Ohio Emergency Professionals Inc (NPI 1982983425, Columbus, OH), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Ohio State University College Of Medicine, class of 1997
## Record status
- **NPPES last updated:** June 24, 2013
- **Other identifiers:** Medicare UPIN H17907 (OH); Medicare PIN 2020451 (OH); Medicaid 2190150 (OH)
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Source: [NPI Profile](https://npiprofile.com/npi/1588669642) · Data from the CMS NPPES public registry.